Black astm a500 grade b steel pipe in China

Description

Our products all have pretty physical appearance with smooth outside welding. Compared with some other suppliers, we use a flat knife for scraping the weld line. Besides, the visual weld geometry size is in line with the actual requirements of different applications. On the other hand, tube shape mutation is easy to cause stress concentration. If the excess part of the welding is polished off in the pipe production process, this will somewhat eliminate part of the stress concentration. In addition, our workers are all skilled in the post treatment of pipes, who all have excellent professional experience for many years.

we can produce different types of steel pipes and the length is controllable. Besides, we have advanced technology and equipment controlled by computer, which can customize the length of steel pipes according to the customers' requirements. In terms of galvanized steel pipes, the length we can produce is ranging from 3 to 16 meter while the length of black steel pipes is from 4.5 to 16 meter. The common lengths for galvanized steel pipe are 3.05m, 3.75m, 5.8m,12m, 7.3m,6m etc. As to black steel pipe, the common lengths are 4.5m,5.8m,6,9,12 etc. Generally speaking, allowable length tolerance is about 0-20mm using fixed length saw. The tolerance can be controlled under 5mm with the process of second saw cutting. Notably, the tolerance is even around ±1mm through the tool of small saw with below 100mm diameter.